To succeed with mobile CI/CD, monitoring key performance metrics such as build time, build failure rate, test duration, test failure rate, and flaky tests is essential. Build time is crucial for measuring the efficiency of the overall mobile app development process, while slow builds can lead to wasted developer time and a poor developer experience. Tracking build failure rate helps reduce wait times and increase productivity, whereas a high test failure rate means more time spent on debugging and re-running tests. Flaky tests produce inconsistent results and can cause confusion and setbacks. Using Bitrise Insights can help identify negative trends in these metrics, investigate root causes, and optimize processes to improve mobile CI/CD performance and produce a higher-quality app that meets user expectations.